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Oval|Lab Grown|IGI

1.78ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG845698384

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG845698384

Diamond specifications and retailer prices

From €186 EUR
$208 USD
As of November 1, 2026
Save €744 EUR (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €930 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.78ct lab-grown oval diamond

This 1.78ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG845698384 or 845698384. Listed at 8 retailers as of October 29, 2026, with prices from €186 to €930, a €744 spread on the same certified stone. MOH London lists it at €930. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.78
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845698384
Dimensions9.64 × 6.94 × 4.32 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.64 mm6.94 mm1.78 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845698384
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €930 EUR|Low: €186 EUR|High: €930 EUR|Avg: €520 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5€186 EUR
Retailer 7€216 EUR
Retailer 2€296 EUR
Retailer 3€389 EUR
Retailer 8€536 EUR
Retailer 6€742 EUR
Retailer 4€745 EUR
MOH London€930 EUR

8 data points across 8 retailers

8 retailers€186 EUR to €930 EUR

A
Cheapest Retailer
-
€186 EUR
$208 USD
A
Retailer 2
-
€216 EUR
$241 USD
View
A
Retailer 3
-
€296 EUR
£260 GBP
View
A
Retailer 4
-
€389 EUR
View
B+
Retailer 5
-
€536 EUR
$599 USD
View
B+
Retailer 6
-
€742 EUR
$829 USD
View
B+
Retailer 7
-
€745 EUR
$832 USD
View
Most Expensive
B
MOH London
LG845698384 · Oct 29
€930 EUR
£818 GBP
View
7 more retailers have this diamond
Prices start from €186 EURSave up to €744 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.78ct Oval
€186 EUR